Home / 1,057,054.60-1,586,051.70-427,198.60

Finding the Fourth Proportional to 1,057,054.60, 1,586,051.70 and 427,198.60

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Solution

The fourth proportional to 1,057,054.60, 1,586,051.70 and 427,198.60 is: 640,987.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,054.60 : 1,586,051.70 = 427,198.60 : x
  2. Step 2: Convert to fraction form
    1,057,054.60/1,586,051.70 = 427,198.60/x
  3. Step 3: Cross multiply
    1,057,054.60x = 1,586,051.70 × 427,198.60
  4. Step 4: Simplify right side
    1,057,054.60x = 677,559,065,767.62
  5. Step 5: Solve for x
    x = 677,559,065,767.62/1,057,054.60
  6. Step 6: Final answer
    x = 640,987.77

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.